Цитирование APA (7-е изд.)

Commission of the European Communities. Directorate-General for Energy. (1999). Energy in Europe: European Union energy outlook to 2020. Office for Official Publications of the European Communities.

Цитирование в стиле Чикаго (17-е изд.)

Commission of the European Communities. Directorate-General for Energy. Energy in Europe: European Union Energy Outlook to 2020. Luxembourg: Office for Official Publications of the European Communities, 1999.

Цитирование MLA (9-е изд.)

Commission of the European Communities. Directorate-General for Energy. Energy in Europe: European Union Energy Outlook to 2020. Office for Official Publications of the European Communities, 1999.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.